package com.atguigu.springsecurity.handler;

import com.alibaba.fastjson.JSON;
import com.atguigu.springsecurity.util.ResponseResult;
import com.atguigu.springsecurity.util.WebUtils;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 认证过程中出现的异常
 * 然后要将其加入到springsecurity
 */

@Component
public class AuthenticationEntryPointImpl implements AuthenticationEntryPoint {

    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException, ServletException {

        // 请重新登录 使用的是HttpStatus的枚举类
        ResponseResult result = new ResponseResult(HttpStatus.UNAUTHORIZED.value(), "用户名认证失败重新登录");
        String res = JSON.toJSONString(result);
        WebUtils.renderString(response, res);
    }
}
